| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could [vb infin] [pron] | 344 |
|
| 2 | i [vb past] [pron] could [vb infin] | 294 |
|
| 3 | i [vb past] [pron] [vb infin] [pron] | 73 |
|
| 4 | i [pron] could [vb infin] [pron] | 15 |
|
